Stefano Angaran has discovered two vulnerabilities in Xoops, which can be exploited by malicious people to conduct cross-site scripting attacks and by malicious users to conduct SQL injection attacks.

1) Input passed to the "op" parameter in modules/pm/readpmsg.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

Successful exploitation requires that the Private Messaging module is installed.

2) Input passed to the "not_list" parameter in include/notification_update.php via third-party modules (e.g. News) is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

The vulnerabilities are confirmed in version 2.4.2. Prior versions may also be affected.

Solution
Update to version 2.4.3.

Provided and/or discovered by
Stefano Angaran, reported via Secunia.

Original Advisory
Xoops:
http://www.xoops.org/modules/news/article.php?storyid=5178

Deep Links
Links available to Secunia VIM customers